Burner



(No Model.)

R. B. CARSLEY.

BURNER. N0. 397,630. vPatend Feb. 12, 1889.

WL'Zv/essos.

N. PETERS. Pham-nilrogmpher. wnmngwn. D. c.

PATENT FEEICE.

ROBERT l2. (MRSL'EY, OF YEr BEDFORD, MASSACHUSETTS, ASSIGNOR TO THE TRIUMPH HEAT AND IllGl-IT COMPANY, OF PORTLAND, MAINE.

BURNER.

SPECIFICATION forming part of Letters Patent No. 397,630, dated February 12, 1889.

Application filed May 22, 1888.

To all 'raz/0711j it may concern:

Beit known that I, ROBERT B. CAEsLE v, of New Bedford, county of Bristol, State of Massachusetts, have invented an Improvement in Burners, of which the following' description, in connection with the accompanying drawings, is a speci tlcation, like lei ters on th e drawings representing like parts.

Th is invention has for its object to provide a portable burner ot' novel construction adapted to burn gas or vapor fuel, myimproved burner being constructed as will be described, wherei by substantially perfect: combustion is ob tained, therel'iy securing a maximum amount ot heat with a minimum consumption of fuel, either gas or h ydrocarbon vapor.

My invention therefore consists, essentially@ in the combination, with an inner and outer Ii'oraminous tube, of a muttle covering said tubes and a base construeteiil to admit gas and air to the said tubes, the said gas and air bei n caused by the said mutic to pass through the sides ot the said tubes, substantiallyv as will be described.

Other features ol my invention will be` pointed out in the claims at the end ol this specicati on.

lfigure l is a vertical section ot' a single portable burner embodying my invention; Fig. 2, a top or plan view otl the base portion of the burner shown in Fig. l; Fig. 3, an under side view ot' the burner shown in Fig. 1; Fig. 4, a detail ot' the lnuliie; Fig. 5, a top or plan view ol a portable burner comprising a group of burners shown in Fig. l, and Fig. (j an under side view ot' the burner shown in Fig.

Referring to Fig. l, the base portieri ot' my improved burner consists, essentially, as herein shown, ot' three parts-wiz., first, an outer cup-shaped shell, o, having in its bottom a an opening, o?, the walls ot' which project, as vherein shown, above the bottom u. to t'orm a flange, fi,1; relerably oetagonal in shape; see ond, an inner shell, o", preferably made as the frustum of an octagonal pyramid to tit over the flange o, to which it is luted or otherwise secured, as indicated byhez'tvyline at ai; and, lastly, a cap or cover, a, having its under face provided with a groove, into which the upper edge or rim of the shell a is iitted and ren- Serial No. 274,658. (No model.)

dered gas-tight by luting di, the upper portion, uit, ot' the said cap or cover being made, as shown, as a frustum of a pyramid to correspond with the inner shell, a, and being provided with a iiange, a9, which is luted, as at al", to the inner shell, u", the flange a being provided with perforations or holes a, (see Fig. 52,) which constitute gas-outlets for the chamber B, 'formed by the outer shell, cap, and inner shell. The outer shell is preferably p supported upon a suitable pedestal, h, to which the cover o is secured, as shown, b v screwbolts h.

The base portion of the burner has secured to it an inner tube or pipe, h2, and an outer tube or pipe, h3, preterabl;fY of foraminous metal, the inner tube being extended into the inner shell, a, and being supported, as herein shown, by the flange a, two or more sides otl the inner tube being pressed or bulgcd outwardly, as at ZH, to rest upon the iiange ai. The outer tube is iittcd over the upper portion ot' and is supported b v the cap or cover ot'. i The burner is preferably provided with a 1nuli'lc,herein shown as a metal plate, h, provided with lugs or projections b, which ex tend down between the inner tube, b2, andthe outer tube, U, to secure Ihe Inutile on the burner.

The gas or vapor luol is supplied tothe chamber l' through a pipe, r'. in the outer shell. The gas or vapor .t'uel passes from the g chamber l through the outlets o and up between the inner and outer tubes.

Air to support combustion is admilted into the liiurner, as shown, through the opening o2, and to regulate the amount of air to the amount of gas or vapor fuel supplied to the burner I have provided a suitable damper, c', (see Figs. l and 3,) pivoted, as at c2, to the bottom c. ot' the outer shell, the said damper having, as herein shown, three holes,I i 3 4, of varying size to vary the amount ot' air admitted to the burner. Iior instance., if it. is desired to admit 'a `t'ull or maximum amount ot' air, as would be the case it' a full or maximum supply ot' gas is admitted to the burner, the valve would be turned, as by the handle e3, to place the hole 2 in line with lthe opening a?, it being el' substantially the same size i as the said opening.

IOO

sides of the outer tube.

If it is not desired to use the maximum amount ot gas, the supply may be controlled accordingly and the damper turned to place the hole 3 in line with the opening d?, and. if a minimum amount ot gas be supplied to the burner the damper will be turned to place the holed in line with the said opening.

By means of the damper c the amount of air admitted to the burner may be regulated to the amount of gas supplied to produce substantially perfect combustion-that is, if a large quantity of gas is supplied a correspondingly large amount oi' air is admitted, and if a medium or a minimum quantity of gas is supplied a like quantity of air is admitted.

A single burner such as shown in Fig. l and above described is adapted for many uses, and can readily be conveyed from one place to another; but when a greater heat than can be produced by a single burner is desired a number of the said burners may be grouped together, as shown in Fig. 5, where four burners are shown in plan view, the outer shell, o, being i cast in one piece and the caps as in one piece With this construction the damper is made as a single plate, d, provided with the series of holes 2 3 4, for the openinga2 of each burner, as shown in Fig. 6.

The outer tube, b3, as herein shown, is cut, as at c, and bent outward to admit air between the inner and outer tubes.

In practice the reservoir will be located in the fire-pot of a stove or in a suitable easing in which the heat is confined, so that the said reservoir becomes heated, thereby accelerating the action oil the gas or vapor and producing a more active and perfect combustion.

In operation let it be supposed that gas has been admitted to the burner and ignited. The gas is prevented from passing directly upward by the mulile, and consequently it must i pass through the foraminous tubes; but it cannot pass through the inner tube, as a current of cold air is constantly passing up the inner tube; hence it must pass through the The current of cold air meets the mu'ttle and forced back, being made to seel; another outlet, which is through the sides of 'the foramiuous tubes. The air commingles with the gas between the outer and inner tube and combustion takes place; but owing to the force of the cold air inA the inner tube and the draft outward through the tubes formed by the combustion of the gas some of the gas which is unconsumed is forced through the ou ter tube, where it is consumed, the oxygen being supplied by the air on the outside of the burner. The iiame arising from the combustion of the gas is diffused or spread out laterally by the edge of muftle overlapping the outer tube, the said flame passing or folding over the inutile and concentrating or meeting substantially above the center of the said inutile, thereby obtaining a maximum heat at that point.

I claiml. In a burner7 the combination, with an inner and outer foraminous tube, of a base t0 support said tubes and composed of an outer shell provided with openings for the admission of gas and air, an inner shell surrounding the said air-opening and forming with the outer shell a gas-chamber, and a cap for said chamber having gas-outlets to admit gas between the said tubes, substantially as described.

2. In a burner, the combination, with an inner and outer toraminous tube, of a mufe covering said tubes, and a base provided with a gas-outlet to admit gas between the said tubes, and an air-passage to admit air to the inner tube, the products of combustion being caused by the said muftle to pass through the sides ot the outer tube, substantially as and for the purpose specified.

3. In a burner, the combination, with an inner and outer foraminous tube, of a muftle covering said tubes, and a base composed of an outer shell provided with openings for the admission of gas and air, an inner shell surrounding the said air-opening and forming with the outer shell a gas-chamber, and a cap Afor said gas-chamber having gas-outlets to admit gas between the said tubes, substantially as described.

4. In a burner, the combination, with an inner and outer foraminous tube, of a mutlie covering said tubes, and a base composed of IOO 

